Gitlab showing created date, rather than last commit date

We’ve migrated a few repos manually (using git clone --mirror) to gitlab from another git service. It’s worked fine (as it should), but in the gitlab web ui, it doesn’t order the projects by their last commit date.

For instance, one of our repos says “Updated 2 hours ago” (which is when the project on gitlab was created), but the last commit to it was over a year ago. We’d want it to say “over 1 year ago.” Can this be changed?